Bone Conduction Speaker Unit with Jack-Mounting
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Solution Overview
Problem
Existing bone conduction speaker units are not versatile for use with various mobile phones, as they require pre-installation in communication equipment and can impair the phone's appearance when attached, and existing solutions are bulky and limit phone compatibility.
Innovation Solution
A compact bone conduction speaker unit that utilizes an earphone jack-mating plug to be simply mounted on mobile phones or other communication equipment, with optional positioning guides, slidable or turnable plugs, and anchoring means for secure attachment, allowing efficient use on a wide range of devices without altering the phone's appearance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a bone conduction speaker is incorporated in the housing of communication equipment, then it can be used effectively, but it requires pre-installation space and cannot be post-installed on existing devices
Solution Approach 1:
The bone conduction speaker unit is divided into separate functional modules: a microphone unit, a bone conduction speaker unit, and a main body unit containing the amplifier and battery. This segmentation allows the device to be post-installed on existing mobile phones without requiring internal housing modifications, as each module can be externally attached.
Solution Approach 2:
The bone conduction speaker functionality is extracted from the mobile phone housing and implemented as an external attachment device. This extraction allows the bone conduction speaker to be used with any mobile phone that has a microphone jack, without requiring pre-installation space within the phone's housing.
2Adaptability or versatility
If a mobile phone attachment with telescoping part and hooks is used to mount the bone conduction speaker, then it can be fixed to the mobile phone, but the type of mobile phone with which it can be used is considerably limited
Solution Approach 1:
The attachment device uses a universal mounting mechanism based on the mobile phone's existing microphone jack, which is a standard feature across most mobile phone models. The earphone jack-mating plug can be inserted into any microphone jack, making the bone conduction speaker compatible with a wide variety of mobile phone models without requiring model-specific hooks or telescoping parts.
3Adaptability or versatility
If a mobile phone attachment with microphone, bone conduction speaker, and main body unit is loaded on an existing mobile phone, then bone conduction functionality is achieved, but the appearance of the mobile phone is impaired
Solution Approach 1:
The bone conduction speaker unit is designed to nest compactly within the main body unit when not in use. The microphone unit can be retracted or folded into the main body, and the entire assembly can be detached from the mobile phone, allowing the phone to maintain its original appearance without the attachment visible or interfering with its design.
4Device complexity
If the bone conduction speaker unit is made compact for easy mounting, then it can be simply loaded on mobile phones, but the sound transmission efficiency may be reduced
Solution Approach 1:
The bone conduction speaker uses a thin, flexible diaphragm that can be exposed at the surface of the compact unit case. This thin film design allows the speaker to maintain a compact form factor while still effectively transmitting vibrations to the user's skull through direct contact, preserving sound transmission efficiency despite the reduced size.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution provides a compact, versatile, and efficient bone conduction speaker unit that can be easily mounted and removed from various mobile phones, ensuring effective sound transmission and maintaining the phone's appearance, particularly beneficial for hearing-impaired individuals.
Implementation Method 1
The bone conduction speaker unit converts a voice signal into a vibration to transmit it to the skull
Data Source
AI summary
Problem is to provide a bone conduction speaker unit which is compact as a whole, and can be used, being simply and neatly mounted to a great variety of pieces of existing communication equipment, such as mobile phones. A unit case 1 is provided which incorporates a bone conduction speaker 2 such that a diaphragm 3 is exposed, with an earphone-jack mating plug 4, which is connected to the bone conduction speaker 2, being disposed on the unit case 1, and by connecting the plug 4 to an earphone jack 22 on a cabinet 21 of a piece of communication equipment, such as a mobile phone, the piece of communication equipment is allowed to be used as a speaker.